Lubricator



H. D. KUHLIVIAN.

LuBmcAToR. APPLICATION FILED AUG.2. 1919.

l ,33 1, 65 1 Patented Feb. 24, 1920.'

I /IIJ'I UNITED STATES PATENT OFFICE.

HERMAN D. KUHLMAN. OF OMAHA, NEBRASKA.

LUBRICATOR.

Application led August 2, 1919.

To all whom t may concern.'

it known that I. HERMAN D. Ianni.- girfxn, a citizen of the UnitedStates, residing at Omaha 'in the count i of DouO'las and.

State of Nebraska. have invented certain new and useful Improvements inLubricators, of which the following is a specification, reference beinghad to the accompanying drawings.

rThis invention relates to certain improvements in lubricators and hasrelation more particularly to a device of this general charactereml'iodying a force. feed including a merhanically operated follower,and it is an object of the invention to provide a. novel and improveddevice of this general character including a cup provided with a iillingopening and wherein a closing member coact-s with the opening and isadjusted or moved into open position by the follower during itsretracted movement.

It is alsoan object of the invention to provide a novel and improveddevice of this general character including a follower mounted formovement within a cup and wherein means is provided for effectivelyholding the follower against movement.

The invent-ion consists in the details of construction and in thecombination and arrangement of the several parts of my improvedlubricator whereby certain important ad f'antages are attained and thedevice rendered simpler, less expensive and otherwise more convenientand advantageous for use, as will be hereinafter more fully set forth.

The novel features of my invention will Aiereinafter be definitelyclaimed.

In order that my invention may be the better understood7 I will nowproceed to describe the saine with reference to the accompanyingdrawings, wherein:

Figure l is a view partly in section and partly in elevationillustrating a lubricator constructed in accordance with an embodimentof my invention.

Fig. 2 is a view partly in section and partly in top plan of the deviceillustrated in Fig. 1.

Fig. 3 is a sectional view taken substantially on the line 3-3 of Fig.l.

As disclosed in the accompanying drawings, C denotes a cup of requisitedimensions and provided in its bottom with a central discharge orreduction opening f l Specification cf Letters Patent.

Patented Feb. 24, 1920.

Serial No. 314,877.

through which grease or other lubricant is adapted to be forced. Theinterior walls of the cup C are smooth and unobstructed and the upper orouter end portion of the cup C is closed by a cap 2. Threaded throughthe central portion of the cap 2 is a rod 3 having affixed to the innerend portion a follower or piston el so that upon rot-ation of the rod 3in one direction the follower or piston will be caused to move inwardlyor downwardly to eil'ect the desired ejection of the lubricant withinthe cup.

A side wall of the cap 2 is provided with an opening 5 normally closedby the slide 6 having movement in a direction longitudinally of the cupC. The slide 6 is provided with an inwardly directed lug with which thefollower or piston 4 contacts when said follower or piston is retraetedso that the u pward or outward movement of the follower or piston etserves to move the slide 6 into open position so that grease or otherlubricant may be applied within the cup C inwardly of the follower orpiston d. After the lubricant has `been applied within the cup C theslide 6 is returned manually to its normal and closed position.

The rod 3 is threaded substantially its entire length and engagedtherewith is a jam or locking nut 8 provided with an outstanding lever 9whereby the requisite ro tation may be imparted to the nut S as theoccasions of practice may require. l

After the slide 6 has been returned to its closed or normal position thelever 9 is swung into a position to overlie the outer or upper edge ofthe slide to hold the same in closed position and said movement of thelever 9 also causes the nut 8 to tighten against the cap 2 to hold therod 3 in position.

The outer end portion of the rod 3 is provided with a handle l0 or othermeans whereby the requisite rotation may be imparted thereto to causethe follower or pistou et to move in the desired directionlongitudinally of the cup C. Vhen it is desired to move the follower orpiston l upwardly or outwardly and to elevate or raise the slide 6, thelever 9 is swung sufficiently to free the slide 6 and in order to limitthe extent of this lateral swinging movement of the lever 9 the cap 2 isprovided with an outstanding stop lug ll with which said lever 9contacts. The stop lug 11 also serves to hold the nut S and lever 9 fromrotating when the rod 3 1s being rotated 111 a direction to move thefollower or piston 4 upwardly or out.

wardly. l

My improved lubricator as herein disclosed is primarily adapted for usein connection with locomotive crank pins, lout I do not wish to loeunderstood as limiting myself to this particular usage. It is also to beunderstood that the follower or piston el fits snugly within the cup C.

From the foregoing description, it is thought to he obvious that alubricator constructed in accordance with my invention is particularlywell adapted for use by reason of the convenience and facility withwhich it may be assembled and operated and it will also be obvious thatmy invention is s-usceptible of some change and modification withoutdeparting from the principles and spirit thereof and for this reason Ido not wish to be understood as limiting myself to the precisearrangement and formation of the several parts herein shown in carryingout my invention in practice except as hereinafter claimed.

I claim: v

1. A lubricator comprising a cup pro vided with a filling opening in aside wall, a slide for closing said opening, a follower arranged Withinthe cup, means for moving the follower in opposite directionslongitudinally of the cup, said slide being provided lwith means wherebythe follower upon movement in one direction, moves the slide 1nto openposition.

2. A lubricator comprismg a cup provided with a filling opening in aside wall, a slide for closing said opening, a follower arranged withinthe cup, means for moving the follower in opposite directionslongitudinally of the cup, and an inwardly directed lug carried by theslide engaged 'by the follower upon movement in one direction for movingthe slide into open position.

3. A luhricator comprising a cup having a filling opening in a wallthereof, a slide for closing said opening, a follower within the cup, arod extending eXteriorly of the cup for imparting movement to thefollower in either direction longitudinally of the cup, and meanscarried by the rod for holding the slide in closed position. Y

4. A lubricator comprising a cup having a filling opening in a wallthereof, a slide for closing said opening, a follower within the cup, arod extending eXteri-orly of the cup for imparting movement to thefollower in either direction longitudinally of the cup, anut threadedupon Vthe rod exteriorly of the cup and provided with an outstandinglever, said lever in one position coacting with the slide for holdingthe same in closed position.

In testimony whereof I hereunto aiiX my signature.

HERMAN D. KUHLMAN.

